发明名称 |
Process for the preparation of ethylene-propylene random copolymers |
摘要 |
Random copolymers of ethylene and propylene are prepared by a process comprising contacting under bulk or vapor phase polymerization conditions components comprising (a) a catalyst capable of producing substantially crystalline polypropylene; and (b) ethylene and propylene in an essentially constant ratio of about 0.1 to 1.0 mole percent ethylene to about 99.9 to 99.0 mole percent propylene. The random copolymers produced by this process have high clarity and distribution numbers greater than 90.
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申请公布号 |
US4219633(A) |
申请公布日期 |
1980.08.26 |
申请号 |
US19790028091 |
申请日期 |
1979.04.09 |
申请人 |
STANDARD OIL CO (INDIANA) |
发明人 |
JOHNSON, PAUL E |
分类号 |
C08F2/02;C08F210/16;(IPC1-7):C08F2/02;C08F2/34 |
主分类号 |
C08F2/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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